ELECTRICAL GRADE INSULATING KRAFT PAPER

  • Made entirely from high purity imported virgin fibres.

  • Used widely as electrical insulation wrap on aluminium and copper wires by conductor manufacturers, electrical insulation between layers of wound coils in electrical motors, in capacitors, transformers & such other electrical equipment

  • Available in natural brown finish






Technical data of ELECTRICAL GRADE INSULATING KRAFT PAPER
Specified Properties Units Values Specified
    1.5mil 2mil 2.5mil 3mil 4mil 5 mil
Thickness Tolerance Micron 38+/-10% 50+/-10% 64+/-10% 75+/-10% 100+/-10% 125+/-10%
Substance (Grammage) g / m^2 30+/-10% 40+/-10% 51+/-5% 61+/-5% 76+/-5% 100+/-5%
Apparent Density g / m^3 0.8 +/- 0.05
Moisture Content % 8 Max
Moisture content % 5 - 9
Water Absorption MD
                        CD
Mm 10 Min.
Air Permeability m/Pa.Sec 0.5 to 1.0
Tensile Index MD
                   CD
Nm/g 78 Min
28 Min
Elongation MD
               CD
% 2.0 Min
4.0 Min
Tear Index MD
               CD
mN m^2/g 5 Min
6 Min
Electric Strength in Air KV/mm 7.0 Min
Ash Content % 1.0 Max
Conductivity of 5% Aqueous Extract Ms/m 10 Max
Ph of 5% Aqueous Extract   6 - 8
Heat Stability (150degC,24hrs) % 20 Max


Tomoegawa Insulating Kraft Paper

Applications
Insulators, dielectric , High tensile strength tapes



Special Characteristics

  • Low ion contaminants through the use of de-ionized water
  • Superior resin and oil impregnation characteristics
  • High tensile strength in the vertical direction
  • Capable of being produced in thin sheets (23g/m2 - 35 microns)
  • Paper combinations - 3 layer construction possible
  • Low density, high air permeability
  • Little difference between front and back
  • Heat resistant insulating paper
  • Coloured insulating paper
  • Colored with dyes that have no electrical influences
  • Semi-synthetic insulating paper & others
  • Also used for instrumentation and condenser applications
  • Basis Weight 23 - 330g/m2



    Property Table for TI Paper
    Properties Units 40
    micron
    50
    micron
    63.5
    micron
    80
    micron
    130
    micron
    180
    micron
    Thickness micron 41 49 64 79 124 178
    Substance g/m^2 31.6 39.2 49.9 63.2 101.7 144.2
    Apparent Density g/m^3 0.77 0.80 0.78 0.80 0.82 0.81
    Tensile Index MD
                       CD
    Nm/g 173.0
      19.0
    184.0
     20.0
    180.0
     20.0
    190.0
      22.0
    163.0
     26.0
    168.0
      26.0
    Elongation MD
                   CD
    % 1.8
    3.3
    1.9
    4.7
    1.9
    5.1
    1.9
    8.7
    2.0
    7.8
    2.1
    8.8
    Tear Index MD
                   CD
    mNm^2/g 4.3
    -
    4.5
    -
    6.4
    -
    6.5
    -
    8.6
    18.7
    10.3
    22.7
    Moisture Content % 4.8 5.6 5.4 4.9 4.9 4.5
    Ash content % 0.30 0.30 0.24 0.30 0.30 0.30
    Conductivity of aqueous extract mS/m 6.5 6.5 6.5 6.5 6.5 6.5
    Ph of aqueous extract - 6.9 6.9 6.9 6.9 6.9 6.9
    Air Permeability Micron/Pa.s 1.11 0.53 0.50 0.90 0.71 1.09
    Water Absorption MD
                            CD
    mm 6
    3
    8
    5
    10
    7
    12
    7
    16
    9
    22
    14
    Electric strength in air (Minimum) kV/mm 11.4 10.6 10.2 9.5 8.8 7.6






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